Traditionally, there are three ways to translate a book series to the big screen. You can make one movie per book (Harry Potter), you can cram a bunch of books into one movie (The Dark Tower), or you can squeeze multiple movies out of one book (The Hobbit). The Harry Potter method is usually the most popular, but according to Dune author Frank Herber’s son Brian Herbert (via io9), Denis Villeneuve’s Dune adaptation is actually going to attempt to pull off the Hobbit-style squeeze. On Twitter, Brian Herbert noted that the first of Villeneuve’s two movies will only cover “approximately half” of Frank Herbert’s Dune: